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--- devwiki:python_qt [2021/12/02 10:32] – [Break 1: Python 2 vs Python 3] ying
+++ devwiki:python_qt [2024/01/10 03:08] (current) – [Layout and Container] ying
@@ Line 366: / Line 366: @@
   * get global text color <code python>
 text_color = self.palette().color(QtGui.QPalette.Text).name()
+</code>
+  * list all current color palette of default in app <code python>
+from PySide2 import QtCore, QtGui, QtWidgets
+import MyToolName
+ui = MyToolName.main()
+color_info = ui.palette().color(QtGui.QPalette.Dark).name()
+print('color info {}'.format(color_info))
+color_roles = [
+    QtGui.QPalette.WindowText, QtGui.QPalette.Button, QtGui.QPalette.Light, QtGui.QPalette.Midlight,
+    QtGui.QPalette.Dark, QtGui.QPalette.Mid, QtGui.QPalette.Text, QtGui.QPalette.BrightText,
+    QtGui.QPalette.ButtonText, QtGui.QPalette.Base, QtGui.QPalette.Window, QtGui.QPalette.Shadow,
+    QtGui.QPalette.Highlight, QtGui.QPalette.HighlightedText, QtGui.QPalette.Link, QtGui.QPalette.LinkVisited,
+    QtGui.QPalette.AlternateBase, QtGui.QPalette.NoRole
+]
+print("Color roles and their corresponding colors:")
+for role in color_roles:
+    color = ui.palette().color(role)
+    print(f"{role}: {color.name()}")
 </code>
   * apply style sheet file <code python>
@@ Line 1141: / Line 1161: @@
 my_layout.setAlignment(QtCore.Qt.AlignTop)
 </code>
-  * QGridLayout <code python>my_grid_layout.setSpacing(0) # 0 tight grid like maya grid </code>
+  * QGridLayout <code python>my_grid_layout.setSpacing(0) # 0 tight grid like maya grid
+# -- make grid equal size for all cells
+cur_layout = ui['region_grid']
+# for i in range( cur_layout.rowCount() ):
+#    cur_layout.setRowStretch( i, 1)
+for j in range( cur_layout.columnCount() ):
+    cur_layout.setColumnStretch( j, 1 )
+</code>
   * QFormLayout
   * QSplitter <code python>
@@ Line 1154: / Line 1183: @@
     * customize look <code python>
 my_tab.setStyleSheet("QTabWidget::tab-bar{alignment:center;}QTabBar::tab { min-width: 100px; }")
+</code>
+  * QScrollArea
+    * put widget into a scroll area <code python>
+# main_layout is top most layout
+main_scroll = QtWidgets.QScrollArea()
+main_scroll.setWidgetResizable(1)
+content_widget = QtWidgets.QWidget()
+content_layout = QtWidgets.QVBoxLayout(content_widget)
+main_scroll.setWidget(content_widget)
+test_label = QtWidgets.QLabel('Example Text')
+test_label.setTextInteractionFlags(QtCore.Qt.TextSelectableByMouse)
+content_layout.addWidget(tmpLabel)
+main_layout.addWidget(main_scroll)
+# optional
+main_layout.setStyleSheet("QScrollArea{min-width:500 px; min-height: 400px}")
 </code>
 ===== QWidget Property =====
@@ Line 1181: / Line 1229: @@
 self.uiList['user_input'].setDisabled(1) # grey out look, can use style to tune better
 self.uiList['user_input'].setReadOnly(1) # normal look, but not editable
+</code>
+  * QLineEdit password hide <code python>
+self.uiList['user_input'].setEchoMode(QtWidgets.QLineEdit.Password)
 </code>
   * QTextEdit make it accept plain text only <code python>
@@ Line 1373: / Line 1424: @@
 # make tree item editable for all columes
 new_node.setFlags(new_node.flags()|QtCore.Qt.ItemIsEditable)
+# change align
+new_node.setTextAlignment(i, QtCore.Qt.AlignRight )
+# change bg to pink
+new_node.setBackgroundColor(0, QtGui.QColor(255,192,203, 100))
+# set to brush and reset to default
+self.brush['fav'] = QtGui.QBrush(QtGui.QColor("#F280BF"))
+currentNode.setBackground(0, self.brush['fav'])
+currentNode.setData(0, QtCore.Qt.BackgroundRole, None)
 </code>
   * make tree item editable only for some columes <code python>
@@ Line 1889: / Line 1951: @@
     * so now I am moving to Qt + C++ solutions to explore more binary tools development using the same knowledge from python QT side.
+====== Problem and Solution ======
+  * Problem: qt.qpa.fonts: Unable to open default EUDC font: "C:\\WINDOWS\\FONTS\\EUDC.TTE"
+    * end-user-defined characters (EUDCs), just delete related regedit entry \HKEY_CURRENT_USER\EUDC\1252
+    * ref: https://bugreports.qt.io/browse/PYSIDE-1620